<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>login success page</title>
    <style>
        .div1 {
            width: 500px;
            height: 300px;
            border: 2px solid grey;
            text-align: center;
            margin: 0 auto;
            color: red;
            background-image: url("雪山.jpg");
            background-size: 100%;
            background-repeat: no-repeat;
        }
    </style>
</head>
<body>
<form action="">
    <div class="div1">
        登陆成功
    </div>
</form>
</body>
</html>